Não informado. (1839). Memoirs of the Geological Survey of the United Kingdon. Institute of Geological Sciences.
Style de citation Chicago (17e éd.)Não informado. Memoirs of the Geological Survey of the United Kingdon. London: Institute of Geological Sciences, 1839.
Style de citation MLA (8e éd.)Não informado. Memoirs of the Geological Survey of the United Kingdon. Institute of Geological Sciences, 1839.
Attention : ces citations peuvent ne pas être correctes à 100%.